toofab has an exclusive clip from tonight's all new episode of "From Dusk Till Dawn," director Robert Rodriguez's TV update of his classic 1998 vampire flick.

In the sneak peek, Santanico (Eiza Gonzalez) temps Richie Gecko (Zane Holtz) with immortality as she tries to get the slightly insane bad boy on her team of the undead.

Sporting an extremely slinky outfit, Pandemonium purrs, "You'll be an immortal among mortals, a king among men, you'll have everything you've ever wanted. All you need to do is ask."

But Richie may be smarter than he looks. Check out the clip above!

toofab's Brian Particelli recently talked to Eiza about playing the feisty femme fatale -- and revealed how she prepared to get into that revealing costume.

"I got into carbs a lot, to get a little more curvy. It took me so long to gain weight, you can see my boobs and my booty growing in every episode until the end of the season," she says.

And while she looks amazing in her bikini, Gonzalez actually loved transforming into Santanico's demonic alter-ego even more.

"It was just amazing. I loved it! I was like 'Give me more!' and Robert was like, 'Control yourself woman!'", she says. "I was running around and growling. Everyone was so freaked out. I definitely have that dark side!"